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Official data from INPI

DISPOSITIVO DE CONTROLE DE FLUXO E SAÍDA PARA RECIPIENTES METALÚRGICOS E PROCESSO DE FUNDIÇÃO DE METAIS DERRETIDOS

Arquivada/ExtintaInvention PatentPCT · CH1987000161
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Application data

Number

PI8707558

Type

Invention Patent

Filing

11/27/1987

Publication

02/21/1989

PCT

CH1987000161
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Progress at the INPI

  1. Filing11/27/87
  2. Publication02/21/89
  3. Examination
  4. Allowance12/05/95
  5. Grant02/04/97
  6. Expired07/29/08

The letters patent expired on 07/29/2008: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

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Latest action published by the INPI: 02/21/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Arva AG

CH

Inventors

A. V. (pessoa física)

CH

Technical data

IPC Classification

B22D 41/18

Priority claims

CH

3805/87-1 · 09/30/1987

CH

4781/86-0 · 12/01/1986

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Notificação de entrada na fase nacional - PCT

#1.3

02/21/1989

RPI 957

Carta-patente expirada

#21.1

Patente extinta em 27/11/2002

07/29/2008

RPI 1960

Concessão da patente

#16.1

02/04/1997

RPI 1366

Notificação para pagamento de retribuição

#13.1

06/18/1996

RPI 1333

Deferimento

#9.1

12/05/1995

RPI 1305

Conhecimento de parecer técnico

#7.1

03/22/1994

RPI 1216

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